Mechanical guider



Jan. 12, 1943- R. HETHERHNGTON MECHANICAL GUIDER Filed April 10,- 1940 4 Sheets-Sheet 1 Jan. 12, 1943. 7

R. HETHEIRINGITON MECHANICAL GUIDER Filed April 10, 1940 4 Sheets-Sheet 2 Jan. 12, 1943. 'R. HIETHERINGTO'N ,30 ,7

MECHANICAL eunmn Filed April 10, 1940 4' Sheets-Sheet s Jan. 12, 1943. Q R. HETHERINGTON 2,307,779

MECHANICAL GUIDEH Filed April 10, 1940 4 Sheets-Sheet 4 pressure may be released.

Figure 3.

Patented Jan. 12,

UNITED STATES PATENT v a a Q I mncimi zlzmnnn i a a I H Robert lietherlngton, Sharon Bill, ia. Y Application April 10, 1940, Serial No. 329,000

15 Claims.

My invention relates. to guiders for travelling stock of a type which are located in pairs, one each at opposite sides of a moving sheet of stock and which respond to bodilymovement of the 7 stock toward either side by releasing the pressure of the-rolls upon the stockat the side toward which movement takes place..

.One purpose of the invention is normally to press the rolls upon the stock and to use bodily sidewise movement of the stock to oscillatearotor member so connected as to'release the pressure. The preferred form locates a friction protective clutch within the connections.

A further purpose is to release normal pressure from amovable roll byan'oscillatory member engaged by the stock and having its operating face engaged by the side of the stock near the edge.

A further purpose is to release the pressure of a movable roll by an are surface engaged by the stock and movable generally in the plane of the stock, transmitting the movement through a lost motion clutch so as to relieve excessive torsion by slip of the clutch and use the clutch slip also for the purpose of changing the surface presented to the stock.

A further purpose is to provide adequate connections between a shaft oscillated by the work and spring means for pressing the movable roller of a guider toward theflxed roll, whereby the a, erally to Figure Figure 6.

form, the guiders of the two and left guiders respectively.

flgli esibeing ht Figure 9 is "a fragmentary perspective view showing anothermean's of constant pressure application' to the movableroll.

Further purposes will appear in the specification and in the claims.

My invention relates to the methods involved as well as to the mechanisms by which the methods are applied.

In the drawings I have preferred to illustrate Figure 3 is 'a top plan view of the structure seen in Figures 1 and 2. i

of the form seen Figure 4 is a fragmentary section-corresponding -generally to a portion of Figure 3 but showing compressive spring urge. s

Figure 5 is a fragmentary section of the spinner corresponding in position to line 5-5 in Figure 6 is a fragmentary section of a and allied structure.

Figure .7 is aperspective view corresponding generally to Figure l but of a slightly different thrust plate or -anvil I '2 l ithrough wl'iich pperat-..-

Figure 10 is an enlarged fragmentary section of a portion of Figure 8 showing a spring-adiustment.

Figure 11 is ,a perspective view ofxa diflerent form. r i j Figure 12 is a longitudinal central section of a threaded impeller seen in Flgurell.

Figure 13 is a section upon line l3-l3 of Figure12.'

Figures 14 and 15 aredigraminaticfragmentary elevations of further forms of the invention.

In the drawings similar-numerals indicate like partsinallfigures. I

The invention is capable-of userwithbut slight change from existing standard guiders. In order to emphasize this. the structure shown has been;

built up by addingpartsjto standard equipment. Thus conventional bracket Iilis secured to other machinery by base. IL -Ihe' apron i2 is attached to the bracket by. a fiangellii. 'Bodily'flxed and bodily movable rolls and Hare, mounted on the bracket inthe' -usual way,gtheformer by spindle l6 and-the latter by'a cradle "I. The cradle comprisesa sleeve 'l8 arm s Miami and yoke 2|, all suspended fron the bracket'by a,

bolt-22 and held-bynut 3. I s

The cradle-is supplie onveniently with a ingpressure may be applied to move the cradle. As thus far describe'd the' construction is well known in practical use, is'e'ss'entiallythesame in clutch Figures 1 to 10 andis'notmuch changed in the fragmentary showing" of the: other figures; One

' of applicants-- forms has [been {shown {asrighthanded and anotherleft-[iL 5e: he'liwdformsxare intended to engage {with in faces or 't'i 'avell ing' stock near op' zioslte'zeii'ges' ,7

H estock' respecbrackets. Y I In all of the'forins shown th 'odilymovable roll is pressed normally toWardtthefbbdilyflXed.

roll by pressureupon the cradle'. stocklies between "Release of pressure on the cradlereleases pressure upon thestock. A number of cradle-pressing constructions-have been illustrattively, and forthatjreasontheaproiisjllland I2 .extend in opposite directions with respect the ed; some are spring-drawn and others use compression springs.

In Figures 1 to 8 an operating wedge rests within grooves 26, in fixed-studs 2|, the studs being rigid with the apron. I

The wedge backs against the studs and faces any suitable member capable of transmitting movement to the cradle, here roller 28, movable at 33 and holds it against lateral movement.

The wedge normally is held to its duty to press the movable roll against the fixed roll, by the urge of a spring fastened between the thin wedge end at 34 and an anchorage 35 supported upon the apron. The spring is seen at 36. In Figure 4 the spring. is a compression spring 36' pressing against the butt 3'! of the wedge and against-an anchorage 35 or a guide. Pins 38- and 38'- hold the spring against slipping.

Close to or within the line of travel of the travelling stock 39 I locate a guard 43 which is intended chiefly to prevent the stock from being diverted so as not properly to engage with the operating conical oscillator or rotor 4|, 1. e. is

intended to support the travelling stock above and below the oscillator against movement perpendicular to its plane, so as to make sure that with excessive movement of the travelling stock to the right, for example in Figure 1, the stock will press against the spinner to turn it and thus to release the wedge pressure. Release of the wedge pressure releases the pressure between the rolls; with the purpose and effect that with release of roll pressure the stock then shifts to the left in Figure 1, again centering the stock.

The oscillator 4| is in the form of a cone having an outer guiding surface 42 and a friction surface 43.. Desirably the cone is made of very light material so that it can be turned by the travelling stock with very slight engagement between the surface of the stock and that of the cone.

As seen best in Figure 3 the friction surface 43 where it is engaged by the stock preferably is nearly parallel with thetravelling stock that passes between the two rolls and is nearly enough in line with the stock so that the stock may en-- gage it, by diversionfrom its normal path of travel. As the stock shifts bodily in its planes over toward the right in Figure 1 (toward the left in Figure 2) the presence of guard 40 insures that the stock will engage the cone surface 42. If the shift of the travelling stock be not earlier corrected by reason of engagement of the side face of the stock with cone surface 42 the normally fiat surface of the stock adjacent its edge is brought into side face pressure engagement with the surface 43 or with a friction surface at or near the junction of surfaces 42 and 43 and which may form a portion of the surface 43.

The guiding surface 42 in the best form known to me is not truly conical but comprises a relatively low slow slope at 44. and 'a progressively steeper slope at 45 so that-with bodily shift of the'path of'the travelling stock to the right in Figure 1 (to the left in Figure 2) there will be a slightly increasing engagement between then face of the stock near the edge and'the lower that it may be oscillated with very slight stock engagement. simple form shown in Figure 5 it comprises conical portions presenting the surfaces 44 and 45, cylinder 41 and ribs 43, 43 along with a supporting interior flange held rigidly to a shaft 5| inany convenient way. In the illustration the parts are held together by the screw 52 and washer 53. Shaft 5| finds bearing in a fixed support 54 rigid with respect to the apron I2. A spur gear 55 is mounted upon the shaft 5|. A

The spur gear 55 engages a gear 56 mounted upon shaft 51 to rotate freely about this shaft but supported against longitudinal movement upon the shaft. The gear 56 is rigid with one member 58 of a lightly engaging friction clutch 59. A clutch surface or clutch surfaces 50 are shownwhich may be of any suitable material, for example, fiber. The cooperating (second) clutch member 6| is splined to the shaft-51 at 62 so as to turn this shaftbut is free to m ove longitudinally along the shaftrwshaft carries a pinion 63.

The structure as thus far described is shown in each of the forms of the invention, except as a stock and turns with it at least a small part of a turn. If there be no clutch the shaft gear 58 will merely be keyed to shaft 51 and the shaft and pinion or spur gear and their connectionsto be described-will tum correspondingly causingrelease of movable roll pressure, the parts reverting to their previous position as soon as the friction from the travelling stock ceases.

The use of the light clutch permits the oscillator to rotate, turning faster and farther than the shaft 51. The pinionor sprocket wheelstill oscillates and is returned by reason of return of the parts driven by it.

The lightness of weight of the spinner and the lightness of engagement between the clutch members make it possible greatly to reduce the frictional engagement which otherwise would necessarily take place between the surface of the travelling stock and the oscillator or spinner and permit operation'of the pinion 63 by the oscillating spinner at the beginning or at any intermediate part of the spinners motion with earlier and/or later rotation of, the spinner without operation of the pinion.- It is thus possible to divide the lost motion between the travelling stock and the clutch members so that any predetermined part of the lost motion takes place between the surface of the stock and the surface of the-oscillator or rotor and the remaining part of it takes place between the clutch members.

Splining ofthe second clutch member upon the It may be made variously. In a and presses the movable clutch member toward the fixed clutch member, maintaining any desired or predetermined friction between them. This pressure is made adjustable by seating the spring against a collar 65' upon a sleeve 65 which is threaded into the clutch member 59 to any extent desired. Preferably the thread is tight enough to maintain the sleeve in position without other locking. The shaft 51 is supported in a bearing 66.

The pinion 63 engages the teeth 61 of a rack 58 secured to the thicker end 69 of the wedge so that with oscillation of the clutch member 6| the pinion is oscillated, in one direction of oscillation withdrawing the wedge sufficiently to release the pressure between the rolls and with the other direction of oscillation permitting the Wedge again to be urged into its active position by its spring.-

The rack is supported to maintain its teeth in engagement with the pinion in any suitable way, as by a guide 10 connected with any fixed part.

In most of the figures the spring 36 holding the wedge in its position normally pressing the rolls together is a tension spring and the spring urge is a tension urge. However, this is a mere matter of convenience of placing the parts. In Figures 9 and 10, as is seen the spring 36 is shown as a pressure spring, pressing between any suitable fixed surface and the anvil of the cradle.

Comparing the structure in Figures 1 to 6 and in Figures 7 and 8, respectively, and remembering that the two structures are intended to act on opposite sides of the cloth and are rights and "lefts respectively, the brackets, aprons and flanges along with the rolls, roll mounts and cradle, are seen 06 be substantially identical. The wedgerwedge myunting and the resilient spring urge for the we rge are the same in principie,there being minor differences in the sizes of the wedge and guides and their distance above the apron. with the result that in the form in Figures 1 to 6 the connection of the wedge engaging roller 28 is through a bar 29 giving a longer leverage, whereas in the form of Figures 7 and 8 the roller 28' is mounted upon the cradle anvil.

As compared with the bracket at the right in Figure 1 the bracket l appears at the left in Figure 7 and the various connections are made to and through. opposite sides of the bracket. Apron l2 supports posts 21', 21' Whose guiding grooved surfaces 26', 26' receive and guide the wedge 25'. The wedge is here pulled toward said position by a spring 36'. However, because of the changed position of the parts, the roller is mounted directly opposite the anvil 24' of the cradle and may conveniently be mounted upon it as shown, so that the wedge presses the cradle away from the observer in Figure '7. pressing the movable rolll toward the fixed roll Id.

The oscillator or rotor shown is of the same character as that indicated at 4| in Figure l and is so mounted as to be rotated by the side face at. the edge of the travelling stock in the same manner exactly as in Figure 1. D The oscillator is mounted in convenient bearings and is connected with a spur gear 55' upon the same shaft asthe oscillator in position to engage and turn a gear 56. The gear 56' operates a clutch member 58' mating with a clutch member GI and having intermediate clutch material as in the case of Figure l. The clutch parts are held together by the pressure of a spring 82.

The guard for the travelling stock, the oscillator (which can rotate and may be viewed as a rotor) its mount and spur gear, the gear 56 upon shaft 51 at right angles to the spur gear shaft and the friction clutch in the train from the gear 56 are intended to be alike in both of these forms. The chief difference between the two formsaside from their right and left relationlies in the use of a pinion engaging a rack in one embodiment of the invention and a sprocket wheel and a chain guided by an idler in the other. The form of Figures 7 and 8 uses a sprocket wheel ll upon the friction clutch shaft 51 and a sprocket chain 12 connected over idler 13 to the heavy end of the wedge at 14.

In each of Figures 1 and"? the wedge normally pushes the movable roll toward the fixed roll to grip the travelling stock between them and the resilient urge by which this pressure upon the wedge is secured is overcome by the operation of the oscillator orrotor, preferably through the lost motion mechanism indicated in the clutch.

This same thought, though translatedin different construction is present in the later figures hereof, also, the pressure between the rolls being set by a spring engaging the wedge. The pressure is thus set uniformly, and the release iseffected by the oscillation or' rotation of a stockengaged member.

In each form lightness of the oscillator or rotor canbe taken advantage of, ,in connection with or without the lost motion. of clutch connection provided, to develop a considerable speed of rotation of the oscillator so as to relieve the pressure of the rolls quickly. The pull upon the wedge or pressure-transmitting member is capable of very exact determination. The characteristics of the friction clutch, if provided, are also capable of exact predetermination. Though the pull upon the wedge-operating spring may be and preferably is made sufflcient at the start, when the friction is highest, to withdraw the pressure transmitter from its engagement, the rotor subsequently may be permitted to revolve rapidly and to any extent called for by the rate of travel of the adjacent travelling stock.

In Figures 7 and 8 the parts of the same character which differ slightly from the parts of Figures 1 to 5 are given corresponding reference characters with primes. One end 15 of the sprocket chain 12 is attached to the sprocket wheel II. The idler 13 need not have sprocket,

projections and in the illustration does not have such projections but is provided merely with flanges l6 and 11 forming a groove between passage of the sprocket chain. The idler has very little movement, requiring little in the way of bearing support and is shown as mounted upon the turned end i8v of an L-bolt or stud l9 and locked in position by a pin 80.

In Figures 9 and 10 the anvil 24 is pressed directly by a compression spring 36 so as to maintain the movable roll in normal pressure toward the fixed roll. The spring 36 extends betweenthe anvil or any convenient extension thereof and a relatively fixed frame part such as a bracket 82, broken in Figures 9 and 10. The spring may rest directly against the anvil at one end and at the opposite end rests in a seat 83 carried by a sleeve 84 threaded into the bracket 82. This provides adjustment comparableexcept that it is through a spring-with the adjustment provided in Figure 3 by the screw 85 between the roller 28 and the anvil in Figure 3.

In Figures Sand 10 an ear.88 rigid with the anvil is connected by a link 81 with one arm 88 of a bell crank 89 mounted by ear 98 upon the bracket 82. The second arm 9| of the bell crank is connected to a sprocket chain 12, comparable with the sprocket chain of Figures 7 and 8. It is cable of connection and operation at its opposite end in the same manner as is shown in Figures 7 and 8, namely, that the chain 12' shall be operated by a sprocket wheel upon the end of shaft 51.

The spring 39 is prevented from lateral movement at the bracket end by its position within the seat 83 and at the anvil end by the interior ear 86.

In Figures 11 and 12 the construction is mounted upon a different kind of a bracket Ill and intervening frame 92 supported from the bracket and itself forming bearings 93 within which the cradle is mounted, so as to provide a swinging movable roll which is capable of being pressed toward the fixed roll by pressure upon a strap or bar 94 fixed to swing the cradle but without the use of an anvil ofthe type illustrated in the other figures. The strap or bar 94 is comparable in'its function with the bar 29 carried by the anvil of Figures 1-3, in that swinging of the bar swings the cradle and with the cradle shifts the movable roll toward or away from the fixed roll.

Bracket I carries supporting structure 95 iilustrated for the purpose only of completing thus far the showing of another well-known form of guider frame construction but need not be entered into further here for the reason that this frame structure in its entirety performs for present purposes the function only of supporting the fixed and movable rolls with a swinging part, here bar 94 by which the movable roll may be pressed against the fixed roll.

The apron I2 is attached in any suitable way to the bracket so as to support operating mechanism of the same general character as that seen in Figures 1 to 3; in particular including a spinner, intermediate gearing, shaft 51 with or without intervening clutch structure, gear 63 and a rack 59. At this point the structure departs from that of Figures 1-3 in that the rack performs a different ultimate function and operates upon a gear and screw plunger instead of upon a wedge.

In the structure of Figures 11 and 12 the rack 69' is guided at 96, 91 and 98 in supports rigid with the apron in order to hold it to its duty in engagement with gear 63 upon shaft 51 and with gear 99 upon a screw shaft I99. The rack is drawn to the left of Figure 11 by a tension 96". Figure 4, is capable of use in this connection to press the rack instead of pulling it.

Of course a compression spring such as in Shaft I00 has bearing in the head IIII' (Figure 12) of a casing II which is secured to the apron. The shaft carries a high pitch thread I02 which has lateral support in a nut I03 guided and restrained from rotation by plates Ill. The nut supports a plunger I05. The plunger has bearing in head I06. With rotation of the gear 99 the shaft advances and retracts the plunger which presses against or releases the 'bar or strap 94 so as to press the movable roll against the fixed roll or to release this pressure as may be required.

In Figure 14 the spinner and intermediate gears are substantially the same as in the earlier numbered figures and slip may be provided by the clutch shown if desired. The shaft 51' carries a steep thread screw I02 acting upon a nut I03 trunnioned at I91 in the yoke I" of a lever III9. The lever is pivoted at III! and carries a roller III: spring-pressed against an anvil 24' upon the cradle II2 not otherwise shown of a der. threaded at III into the end H5 of the lever and locked by nut 6 to permit adjustment. The lever is spring-drawn by spring I I1 to press the yoke to gripping position. To ensure return of the nut I03 and hence reverse (resetting) turning of the shaft 51' a torsional spring H8 is provided, secured at one end to the shaft and at the other end to a fixed part.

In Figure 15 the desired pressure against anvil 24 is given by a roller III carried in yoke H3 and adjustable at threaded end II4' into a strut II9 pivoted at I29. Spring II1 holds the strut normally in engaging position. 'A link I2I is connected with a crank arm I22 of a shaft 51 At the opposite end the strut and link are pivotally connected by a pin I2I fixed in the strut H9 and passing through an eye I 2| in the end of the link. The shaft is turned by a spinner, with or without an intervening clutch, and is springreturned by a torsion spring I I8.

If the normal resilient pressure of the fixed and movable rolls against the travelling stock be maintained when the guiders are not in use a spring, and several of the views show such a release. them.

In Figures 1 and 3 the anchorage 35 is slotted at It can of course be applied to all of I 29 so as to permit the terminalifl of the spring to be moved laterally from theapafiiorag'e soas to release the spring. This spring terminal I24 holds in the position shown the spring pressing a washer I25 against the face I26 of the anchorage in normal use. Using the knob as a handle the spring can be stretched out sufiiciently to allow the terminal I 24 to be moved laterally entirely free of the anchorage.

In Figure '1 the spring is held by a screw I21 which is held in place within its anchorage by nuts I28 and I29. The nut I28 can be left in its normal position to act as a stop for resetting and the nut I29 can be backed off sufficiently to release the spring. When it is intended to operate the guider this nut I29 is screwed up until the nut I28 again engages the anchorage to repeat the setting of the spring for normal resilient pressure between the rolls.

In Figure 11 the anchorage is slotted vertically at I30. At the top the anchorage is outwardly lipped at I3I to insure that there shall be no accidental sideways withdrawal of the spring terminal. This terminal is pulled out and is then withdrawn laterally through the slot to permit removal of the spring terminal. Correspondingly the parts can be put back to the same position.

It will be evident that when the spinner is a rotor itslight weight particularly well adapts The roller is carried by a yoke H3.

several views resilient normal pressure of the rolls is brought upon the travelling stock by each of the guiders near the corresponding edge of the stock until for whatever reason the stock shifts bodily toward that side so as to engage the spinner there.

The stock will engage first with the conical surface of the cone spinner, and further movement to that side will mount this conical surface and engage the adjacent spinner surface. This adjacent surface is first an edge and then a surface. The surface conveniently is a cylindricalv friction surface. Turning the spinner correspondingly turns intermediate gearing and shaft 51, whether the clutch intervene or not. It turns this shaft ma directionsuitable for release of the pressure between the rolls.

Turning shaft 51 is effective in Figures 1 to 6 to withdraw the pressure wedge, moving it against the resilient force exerted by spring 36 or 36'. This permits the cradle to swing toward the observer in Figure 1, for example, to release the roll pressure. p

In Figures 7 and 8 the connections between shaft '51 andthe wedge are by a guided chain, but the same function is accomplished of withdrawing the wedge against resilient resistance of the spring. In Figure 9 the chain is applied through a bell-crank to compress a spring which directly exerts a pressure upon the cradle; but the same effect is produced except that it is positive here instead'of merely permissive. It releases the cradle so that the movable roll presses less strongly, or no longer presses the stock against the fix d roll.

In Figures 11, 12 and 13 a rack generally corresponding t5. the rack of Figure 1 forms an intermediary between the shaft 51 and the pressure releasing parts. The rack is spring-drawn in a direction such as to apply pressure between the rolls, again corresponding in this with Figure 1. However the pressure in Figures 11-13 is effected by a plunger propelled by a rapid thread and rotation of shaft 51 reversely turns the thread so as to relieve the pressure.

In Figure 14 roll pressure is applied resiliently through a spring-drawn lever-operated for release by a swivelled nut travelling upon shaft 51'. The nut is returned by a spiral spring in the form of Figure 17, the spring pressure is effected by a pivotedthrust bar and roller spring drawn toward pressure position. Again pressure is released by turning the shaft 51 through a lever carried by that shaft with return of the parts to initial position either by reason of the tension spring or by a spiral spring as in Figure 14.

In all of these forms therefore there is a normal spring pressure exerted upon the movable roll causing it to grip the stock between it and the fixed roll, with release of this resilient normal pressure by reason of turning of a shaft of the type of 51.

With all of the forms the extent of swinging movement where there is no intermediate lost motion is dependent upon the extent of permissible movement of the connection parts by which the pressure upon the rolls is released. This can vary widely, of course, since it is a release movement only in those forms in which there is a withdrawal of a wedge, for instance. There is ample room for lost motion movement of the wedge after release and, therefore, of the connecting parts. These connecting parts restrict swinging of shaft 51.

as oscillation rather than rotation.

In the form of Figures 11, 12 and 13 the withdrawal steep screw movement of the plunger parts shown in Figure 12 affords an ultimate limit to the swinging movement of shaft 5'! which can be extended, of course, by extending the steep screw.

In the form of Figure 10 the limit is the reasonable throw permissible for the bell-crank and the amount of compressive movement provided for in the compressing spring.

, In Figure 14 the movement of the swivelled nut on shaft 51' limits release movement as does the limit of usable arc of movement of the crank arm in Figure 15.

These limitations to swinging movement of the shaft 51 and 51 define its swinging movement When a clutch is not interposed at some point in the connection to permit lost motion movement of the spinner with respect to the shaft the spinner also has swinging movement of oscillation only and returns to the same portion of spinner sur-- face presented for initial engagement by the moving stock.-

When the clutch or other lost motion con-' nection is interposed or exists the spinner can turn or swing (oscillate) carrying the shaft up to the point where the limit of the intermediate connections restrains the shaft, and can then turn or swing (rotate) without carrying the shaft for whatever additional turning movement is provided by the slip of the clutch or lost motion.

The oscillation range plus th rotation range both allow the spinner to turn on its axis. Where there is no slip the parts come back to the same spinner position as before and the swinging movement is characterizable as oscillation only.

Where there is slip between the spinner and shaft 51 or 51 the spinner has corresponding rotation, the parts of the spinner do not come back to the initial position and a different spinner surfaceis presented to the travelling stock.

The clutch, therefore, offers several advantages in connection with the use of the spinner in permitting the spinner to turn at a higher speed and in distributing the wear upon the spinner about its surface by reason of new portions of the surface being presented successively for the beginningsor the spinner strokes.

The spinner is made desirably light not only in order that it may start with less engagement with the stock but that after it has come to the end of its spinning turn, there is less inertia to stop and less strain upon the intervening parts.

In view of my invention and disclosure variations and modifications to meet individual whim or particular need will doubtless become evident to others skilled in the art, to obtain all or part of the benefits of my invention without copying the structure shown, and I, therefore, claim all such in so far as they fall within the reasonable spirit and scope of my invention.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a guider for travelling stock, fixed and movable rolls, spring-pressed meansfor normally pushing the movable roll toward the fixed roll, an oscillator engaged by the stock when bodily too far toward the guider side, connections between the oscillator and the spring means, whereby movement of the oscillator releases the pressure and a friction clutch between the oscillator and the pressure mechanism permitting continued movement of the oscillator after the pressure release mechanism nas stopped.

2. In a mechanical guider for travelling stock, a fixed roll, a movable roll, supporting bearings for both rolls, a cradle carrying the movable roll, spring means for bringing pressure against the cradle normally to press the movable roll toward the fixed roll with a predetermined pressure, a rotor adapted to be engaged by the travelling stock with excessive bodily movement of the stock toward oneside, connections between the rotor and the means pressing against the cradle whereby the predetermined pressure is relieved and a friction clutch in the connections permitting slip between them.

3. In a guider for travelling stock, fixed and movable rolls mounted for rotation, a cradle by which the movable roll is carried and is guided in swinging toward and away from the fixed roll, spring set means for pressing against the cradle to press the movable roll toward the fixed roll initially, a rotor mounted within the line of travel of the stock as it shifts bodily toward one edge of the stock, a friction clutch, one member of which is operated by the rotor, and connections from the other member of the clutch whereby the pressure of the cradle is relieved withtu ing movement of the rotor. g

4. In a mechanical guider for travelling stock a pair of rolls, one bodily movable, a spring urged roller and connections pressing the movable mu toward the fixed roll and rotary means forreleasing the pressure and including a friction clutch and a rotor engaged by the traveling stock.

5. A guider for travelling stock comprising fixed and movable rolls, resiliently urged longitudinally movable wedge means for pressing the movable roll normally toward the fixed roll, an oscillating spinner lying within the path of travel of the stock when the stock moves bodily toward the guider side, a shaft oscillated by the spinner a gear on the shaft and connections between the shaft and wedge, including a rack movable longitudinally with movement of the wedge for releasing the wedge pressure, whereby the normal pressure of the movable roll toward the fixed roll is relieved when the spinner oscillates'and again applies when the spinner returns to its normal position.

6. In a guider for travelling stock, fixed and movable rolls, means for mounting the rolls, a spinner engaged and oscillated by the stock, a shaft connected with and oscillated by the spinher, a friction clutch located in the connections between the shaft and the spinner, a resiliently urged rack retracted by the shaft and connections between the rack and the movable roll whereby the movable roll normally is pressed toward the fixed roll but with oscillation of the spinner the pressure of the movable roll toward the fixed roll is relieved.

7. In a guider for travelling stock, fixed and movable rolls, a spinner in the path of possible travel of the stock, a gear driven by the spinner, a second gear connected to the first gear, a shaft about whose axis the second gear is free to turn, a friction clutch providing slippage between the second gear and the shaft, a spur gear on the shaft, a rack engaged by the spur gear, a wedge and connections normally pressing the movable roll toward the fixed roll, released by reverse movement of the rack and resilient means for normally holding the wedge in operating position.

8. In a guider for travelling stock, fixed and movable rolls, a spinner in the path of possible travel of the stock, a gear. driven by the spinner, a second gear connected to the first gear, a shaft about whose axis the second gear is free to turn. a friction clutch providing slippage between the second gear and the shaft, 9. sprocket wheel carried by the shaft, a sprocket chain connected with the sprocket wheel,'and a wedge and connections resiliently urged to wedge operating position and released by the pull of the sprocket chain.

9. In a mechanical guider, a. pair of rolls one fixed andthe other movable bodily toward the fixed roll and away'from it, bearing supports for the rolls, a strut and connections normally pressing the movable roll toward the fixed roll, spring means urging the strut to its pressure position, an oscillatory member adapted to be engaged by the stock with bodily movement of the stock toward the outer edges of the rolls, and connections between the member and the strut including a friction clutch, whereby oscillation of the member operates through the clutch to release the strut pressure and to release the pressure of the bodily movable roll toward the fixed roll.

10. In a mechanical guider, fixed and movable rolls, a steep screw and connections pressing the movable roll toward the fixed roll, a shaft for the screw, a gear on the shaft, a guided rack engagingithe'gear, a spring urging the rack toward roll-pressing position, intermediate means in- 1cluding africfion clutcn for pulling the rack againstthe urge ofijthe spring and a rotor engagedbys e travelling stock intermediate eansii 11. In a guidefifor travelling stock, fixed and movable rolls, a spiniferin the path of possible travel of the stock, a geargdriven by the spinner, a second gear connected to the first gear, a shaft about whose axis the second gear is freeto turn, a friction clutch within the connections of the spinner with the shaft providing slippage between them, a gear on the shaft, a threaded plunger normally pressing the movable roll toward the fixed roll, resilient means for holding the plunger in this position and connections between the gear and the plunger for turning the plunger to release the pressure with movement of the shaft and gear.

12. In a guider for travelling stock, fixed and movable rolls, an anvil connected with the movable roll, a spring-urged longitudinally movable wedge, abutments against which one face of the wedge presses, the other face being effective to shift the anvil, thereby normally pushing the movable roll toward the fixed roll, an oscillator and connections between the oscillator and the wedge pulling against the urge of the spring to release the pressure on the movable roll.

13. In a guider for travelling stock, fixed and movable rolls, an anvil connected with the movable roll, a spring-urged wedge, abutments against which one face of the wedge presses, the

other face being effective to shift the anvil, thus adapting the wedge by longitudinal movement and operating to press it toward the fixed roll, a rack extending generally parallel to the length of the wedge and connected with the wedge to move the wedge, a spinner, a shaft rotated by the spinner and a gear carried by the shaft engaging the rack.

15. In a guider for travelling stock, fixed and movable rolls, spring-urged wedge means tor-normally pushing the movable roll toward the fixed roll, an oscillator engaged by the stock when bodily too far toward the guider side of the stock, a shaft rotated by the oscillator, a sprocket carried by the shaft and sprocket chain connection between the wedge and the sprocket.

ROBERT HETHERING ION. 

